Territory



(No Model.)

B. SEABOLDT.

ELECTRIC WIRE INSULATOR.

No. 340,734. Patented Apr. 27, 1886.

InvdmW.

Z fi u NwPETERS. Phmo-Limo m hen Washinglon. IL (L UNITED STATES PATENT OFFICE.

BERT SEABOLDT, OF SALT LAKE CITY, UTAH TERRITORY, ASSIGNOR OF THREEFOURTHS TO GEO. GOSS, SAMUEL H. GILSON. ANT) ANDREW L.

HORNER, ALL OF SAME PLACE.

EZFEUIPICATION forniin Application filed January 37, 1886.

part of Letters Patent No. 340,734, 52*

Serial No. 139,905. (Xe model.)

To (tZZ whom it "In/(Ly concern.-

Be it known that I, BERT SIGABOLD'I, a citizen of the United States, residing at Salt Lake City. in the county of SaltLake and Territory 5 of Utah, have invented certain new and useful Improvements in Electric insulators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it an IO pertains to make and use the same, reference beinghad to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

The object. of my invention is to produce an insulator of a character suitable for supporting an electric line-wire, which shall be of simple and cheap construction, and more perfectly prevent the escape or leakage of the electric fluid than insulators heretofore employed.

The most usual method of insulating a line wire is to support it upon a knob of glass or other non-comluctiug material by means of 2 a tie-wire passed around the knob. in wet weather, however, the tie-wires, necessarily good conductors, transmit a considerable amount of the electric llnid from the line-wire to the poles or other supports through the medium of the water upon the surface of the insnlatingknob.

it is the aim of .my invention to render this simple and convenient method of insulating more effcient by covering practically the 5 whole of the tie-wire by a non-conducting and a waterproof substance in such manner that said wire can have contact with but a small extent, if any, of the wet surface of the insulatingkm'lb, and shall form a permanent a e part of the insulator.

My invention can best be understood by reference to the accompanying drawings, in which I have shown a means for carrying it into effect.

5 In said drawings, Figure 1. is a vertical section of an insulator embodying my invention. Fig. 2 is a horizontal section of the same,showing also a portion of a line-wire supported by the device.

A indicates the insulatingkuob, which may 0 beneath its surface and out laterally through an aperture, (1. The free ends 0 of the tie wire are to be twisted around the liuewirc to support the same, as indicated in Fig. 2. It will be seen that the tie-wire is thus completely out of contact with that surface of the insulating-lurch A which is exposed and often wet.

\Vhere the ends of the tie-wire pass from the insulator, tl 5 aperture (a may be so on largcd that said ends need not touch the edge of the opening, and the possibility of the contact of the tie-wire with a wet surface at this point also prevented.

The insulating-lurch may be made and the wire combined with it in various ways. The method which I have illustrated is a convenient one. In this construction the body of the knob A. is made of a plastic insulatiig material-such as gilsonitc--- the wire (I passed around it, and then a coviiming, a, of the same material pressed into place over that portion of the tie-wire which encircles the knob. The body of the knob, might, however, be made of one substance-such as glass-an l the covering a of another substance such as gilsonite ora rubber co1nposition-or the wholeknob may be molded at once with the tie-wire properly inclosed in it.

I am aware that tie-wires have heretofore been more or less covered with an insulating material, and i do not claim in an insulator such a tie-wire, broadly. I

Having thnsdeseribed my invention, what I claim, and desire to secure by Letters Patent of the United States, is

1. The combination of an insulatingknob, a tie-wire encircling the same and having its ends adapted to support a linewirc, and a covering for the tiewirc, consisting of a plastic insulating and waterproof material joined to the body of the insulator-knob, substantially as set forth.

The combination of an insulutingknob and a tie-wire, the knob being formed of a In testimony whereof I affix my signaturein plastic insulating material and inclosing the presence of two witnesses. l wire substantially as set forth.

3. The combination of the knob A, the wire BER D SEABOLDT' 5 O, encircling the same and inclosed, and the Witnesses: line-wire supported by the wire 0, substan- A. L. HoRNER, tially as sct forth. i VAL M. BRADLEY. 

